介绍了风道系统自动设计的过程和实现自动设计的技术要点 ,包括管段编号和风量统计 ,流速分配和尺寸计算 ,水力计算和阻力平衡计算 ,输出计算结果并绘制系统平面施工图和轴测图等等 This paper introduces the process of automatic design of air duct system and the technical points of automatic design, including the pipe number and air volume statistics, the flow distribution and size calculation, the hydraulic calculation and the resistance balance calculation, outputs the calculation results and draws the system construction plan and the axonometric chart and many more